Missing functions header in json_object.h

[kxp]

I was trying to use extern int json_object_set_int(struct json_object *obj,int new_value); which I include from /usr/include/json-c/json_object.h but its not there. But if I use the original header that I use to compile the lib I get undifined reference.
The same thing happens to other setters. There is a test file(test_set_vale.c) that also uses this function,in that case I 'm assuming that it can be use from the "outside".
I am using the version 0.12.1.

[hawicz]

json_object_set_int was added on October 5th in commit 05f025c.
Version 0.12.1 is from June.
If you want to use that function you'll need to build and install from a more recent copy of the code than the 0.12.1 release.